/*
 *  The Syncro Soft SRL License
 *
 *  Copyright (c) 1998-2007 Syncro Soft SRL, Romania.  All rights
 *  reserved.
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions
 *  are met:
 *
 *  1. Redistribution of source or in binary form is allowed only with
 *  the prior written permission of Syncro Soft SRL.
 *
 *  2. Redistributions of source code must retain the above copyright
 *  notice, this list of conditions and the following disclaimer.
 *
 *  3. Redistributions in binary form must reproduce the above copyright
 *  notice, this list of conditions and the following disclaimer in
 *  the documentation and/or other materials provided with the
 *  distribution.
 *
 *  4. The end-user documentation included with the redistribution,
 *  if any, must include the following acknowledgment:
 *  "This product includes software developed by the
 *  Syncro Soft SRL (http://www.sync.ro/)."
 *  Alternately, this acknowledgment may appear in the software itself,
 *  if and wherever such third-party acknowledgments normally appear.
 *
 *  5. The names "Oxygen" and "Syncro Soft SRL" must
 *  not be used to endorse or promote products derived from this
 *  software without prior written permission. For written
 *  permission, please contact support@oxygenxml.com.
 *
 *  6. Products derived from this software may not be called "Oxygen",
 *  nor may "Oxygen" appear in their name, without prior written
 *  permission of the Syncro Soft SRL.
 *
 *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 *  OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 *  DISCLAIMED.  IN NO EVENT SHALL THE SYNCRO SOFT SRL OR
 *  ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 *  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 *  USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 *  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 *  OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 *  SUCH DAMAGE.
 */
package ru.mcfr.oxygen.framework.extensions;

import ro.sync.ecss.extensions.api.AuthorAccess;
import ro.sync.ecss.extensions.api.AuthorExternalObjectInsertionHandler;
import ro.sync.ecss.extensions.api.AuthorOperationException;
import ro.sync.ecss.extensions.api.node.AuthorDocumentFragment;
import ro.sync.util.URLUtil;

import java.net.URL;
import java.util.List;

/**
 * Accepts insertion of images and XML files from external sources.
 */
public class MOFExternalObjectInsertionHandler extends AuthorExternalObjectInsertionHandler {
    /**
     * @see ro.sync.ecss.extensions.api.AuthorExternalObjectInsertionHandler#insertURLs(ro.sync.ecss.extensions.api.AuthorAccess, java.util.List, int)
     */

    public void insertURLs(AuthorAccess authorAccess, List<URL> urls, int source)
            throws AuthorOperationException {
        for (URL url : urls) {
            String xmlFragment = null;
            if (authorAccess.getUtilAccess().isSupportedImageURL(url)) {
                // Insert an image element
                xmlFragment = "<image href=\"" + url.toString() + "\"/>";
            } else {
                // Insert
                xmlFragment = "<ref location=\"" + url.toString() + "\"/>";
            }
            if (xmlFragment != null) {
                // Create am image fragment
                AuthorDocumentFragment imageFragment = authorAccess.getDocumentController().createNewDocumentFragmentInContext(
                        xmlFragment, authorAccess.getEditorAccess().getCaretOffset());
                // Insert the fragment
                authorAccess.getDocumentController().insertFragment(authorAccess.getEditorAccess().getCaretOffset(), imageFragment);
            }
        }
    }

    /**
     * @see ro.sync.ecss.extensions.api.AuthorExternalObjectInsertionHandler#acceptSource(ro.sync.ecss.extensions.api.AuthorAccess, int)
     */

    public boolean acceptSource(AuthorAccess authorAccess, int source) {
        if (source == DND_EXTERNAL) {
            // Accept only from external source
            return true;
        }
        // For urls from other sources (Dita Maps Manager, Project) a new tab will be open.
        return false;
    }

    /**
     * @see ro.sync.ecss.extensions.api.AuthorExternalObjectInsertionHandler#acceptURLs(ro.sync.ecss.extensions.api.AuthorAccess, java.util.List, int)
     */

    public boolean acceptURLs(AuthorAccess authorAccess, List<URL> urls, int source) {
        boolean accept = acceptSource(authorAccess, source);
        if (accept) {
            for (int i = 0; i < urls.size(); i++) {
                // Accept only XML and image files
                if (!authorAccess.getUtilAccess().isSupportedImageURL(urls.get(i)) &&
                        !"xml".equalsIgnoreCase(URLUtil.getExtension(urls.get(i).toString()))) {
                    accept = false;
                    break;
                }
            }
        }
        return accept;
    }
}
